The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"Lectures ... printed substantially as delivered at Lowell institute last January  with only incidental revision ... The first four chapters were prepared by Mr. Haskins, the last four by Mr. Lord."--Pref